... stainless steel,cast iron,pig iron,carbon steel,alloy steel,non-ferrous,grey iron,ductile cast iron and so on ... 4.Process: lost wax process, soluble glass process , silicon process casting5.Application: Industrial parts, Machinery parts, hardware, construction ... /valve parts,train,craft,doorhandle,hinge,hydraulicpressure,construction,agricultural machinery 8.make machining service as ...